Centrifugal drying and dedusting process

Patent · Tue Sep 25 00:00:00 EDT 1984

OSTI ID:6423904

Thacker, M B; Miller, P B

A centrifugal drying and dedusting process is provided to dedust heavy oil derived from solid hydrocarbon-containing material such as oil shale, coal or tar sand. In the process, heavy oil laden with particulates derived from the solid hydrocarbon-containing material is centrifuged into a dedusted stream of heavy oil and a dust laden centrifuge sludge. The dedusted stream of oil can be further dedusted in a desalter, after being first mixed with fresh water, to form a purified, highly dedusted, effluent stream of heavy oil. Dust laden water from the desalter is centrifuged into a dedusted stream of water and a dewatered centrifuge sludge. The dedusted stream of water is recycled upstream of the desalter and mixed with the influent oil stream. Desirably, the centrifuges sludges are mixed, heated, dried and separated into another dedusted stream of oil and a powdery, dust-enriched residual stream which can be combusted in a lift pipe for use as heat carrier material in the dryer and retort.

• Assignee: Standard Oil Co.
• Patent Number(s): US 4473461
• OSTI ID: 6423904
• Resource Relation: Patent File Date: Filed date 21 Jul 1981; Other Information: PAT-APPL-285455
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM
CENTRIFUGATION
DESALINATION
PURIFICATION
PETROLEUM RESIDUES
WASTE PRODUCT UTILIZATION
COAL
DRYERS
DRYING
DUSTS
OIL SHALES
PHASE CHANGE MATERIALS
RETORTS
SEPARATION EQUIPMENT
SLUDGES
TAR SAND TRIANGLE DEPOSIT
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTORS
DEMINERALIZATION
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
GEOLOGIC DEPOSITS
MATERIALS
OIL SAND DEPOSITS
PETROLEUM FRACTIONS
SEPARATION PROCESSES
020400* - Petroleum- Processing